Alert archive / Wyoming / High Wind Warnings in 2012
High Wind Warning 33, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Dec 7, 2012, 2:56 PM MST for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Dec 8, 2012, 12:00 AM MST. It was in force for 14 hr. 12 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 7, 2012, 2:56 PM MST (21:56 UTC)
- In effect from
- Dec 8, 2012, 12:00 AM MST
- Expired
- Dec 8, 2012, 2:00 PM MST
- In force
- 14 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 22:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 8, 5:11 AM MST | SNOW 2 | 23 Nw Dubois, WY | BROOKS LAKE LODGE |
| Dec 8, 6:43 AM MST | SNOW 3.5 | 1 W Rock Springs, WY | |
| Dec 8, 7:04 AM MST | SNOW 1.9 | 1 E Rock Springs, WY | |
| Dec 8, 11:41 AM MST | SNOW 5 | 4 Ene South Pass City, WY | |
| Dec 8, 12:32 PM MST | SNOW 4 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Dec 8, 12:43 PM MST | SNOW 2 | 14 W Crowheart, WY | COLD SPRINGS SNOTEL |
| Dec 8, 12:43 PM MST | SNOW 2 | 18 W Lander, WY | HOBBS PARK SNOTEL |
| Dec 8, 12:43 PM MST | HEAVY SNOW 9 | 19 Ssw Lander, WY | DEER PARK SNOTEL |
| Dec 8, 12:44 PM MST | SNOW 4 | 6 Wsw Dubois, WY | LITTLE WARM SNOTEL |
| Dec 8, 12:44 PM MST | HEAVY SNOW 12 | 7 Nw Atlantic City, WY | SOUTH PASS SNOTEL |
| Dec 8, 12:46 PM MST | SNOW 2 | 26 Nw Lander, WY | ST. LAWRENCE ALT SNOTEL |
| Dec 8, 12:47 PM MST | SNOW 2 | 12 Sw Lander, WY | TOWNSEND CREEK SNOTEL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 9.9 hours before the alert went out and 62 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1260 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
637 WWUS75 KRIW 072156 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 256 PM MST FRI DEC 7 2012 ...HIGH WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING LATER TONIGHT INTO SATURDAY EVENING... .A VERY STRONG COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA LATER TONIGHT INTO LATER SATURDAY PRODUCING A HIGH POTENTIAL OF VERY STRONG TO HIGH WINDS IN A FEW AREAS. WYZ019-081200- /O.NEW.KRIW.HW.W.0033.121208T0700Z-121208T1500Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 256 PM MST FRI DEC 7 2012 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM MST SATURDAY. * SUMMARY AND TIMING...SOUTHWEST WINDS WILL INCREASE THROUGH THE EVENING BECOMING VERY STRONG AFTER MIDNIGHT AND CONTINUING INTO SATURDAY MORNING WHEN THE COLD FRONT MOVES THROUGH. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. * IMPACTS...TRAVEL BETWEEN BEAVER RIM...JEFFREY CITY AND MUDDY GAP WILL BE IMPACTED BY NOT ONLY THESE VERY STRONG SOUTHWEST WINDS BUT ALSO SOME SNOW SHOWERS SATURDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ016-081200- /O.NEW.KRIW.HW.A.0032.121208T1200Z-121208T2100Z/ UPPER WIND RIVER BASIN- INCLUDING THE CITY OF...DUBOIS 256 PM MST FRI DEC 7 2012 ...HIGH WIND WATCH IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON. * SUMMARY AND TIMING...A COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA SATURDAY MORNING PRODUCING THE POTENTIAL FOR VERY STRONG NORTHWEST WINDS THAT WILL LAST MUCH OF THE DAY. THE STRONG WINDS WILL ALSO BE COMBINED WITH SNOW SHOWERS WHICH MAY PRODUCE A FEW INCHES OF SNOW...ESPECIALLY FROM DUBOIS AND POINTS NORTHWEST OF DUBOIS. * WIND...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELLERS BETWEEN CROWHEART AND NORTHWEST OF DUBOIS ALONG HIGHWAY 26 AND 287 SHOULD BE PREPARED FOR THESE VERY STRONG NORTHWEST WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-081200- /O.NEW.KRIW.HW.A.0033.121209T0000Z-121209T0600Z/ NORTHEAST JOHNSON COUNTY- INCLUDING THE CITY OF...BUFFALO 256 PM MST FRI DEC 7 2012 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM SATURDAY AFTERNOON THROUGH SATURDAY EVENING. * SUMMARY AND TIMING...A STRONG COLD FRONT WILL PUSH SOUTH ACROSS THE AREA SATURDAY EVENING WHICH MAY PRODUCE HIGH WINDS AND SOME CONTINUED SNOWFALL. SOME LIGHT SNOW WILL LIKELY PRECEDE THE STRONGEST WINDS DURING THE DAY ON SATURDAY. * WIND...NORTH 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVEL ACROSS NORTHERN JOHNSON MAY BE IMPACTED BY NOT ONLY THESE VERY STRONG NORTH WINDS BUT ALSO SHARPLY REDUCED VISIBILITY IN SNOW LATE SATURDAY INTO SATURDAY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS CONDITIONS ARE FAVORABLE FOR A HAZARDOUS HIGH WIND EVENT IN AND CLOSE TO THE WATCH AREA. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
3 follow-up statements
129 WWUS75 KRIW 080331 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 831 PM MST FRI DEC 7 2012 ...HIGH WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING LATER TONIGHT INTO SATURDAY EVENING... .A VERY STRONG COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA LATER TONIGHT INTO LATER SATURDAY PRODUCING A HIGH POTENTIAL OF VERY STRONG TO HIGH WINDS IN A FEW AREAS. WYZ010-080445- /O.CAN.KRIW.HW.A.0033.121209T0000Z-121209T0600Z/ NORTHEAST JOHNSON COUNTY- INCLUDING THE CITY OF...BUFFALO 831 PM MST FRI DEC 7 2012 ...HIGH WIND WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH WIND WATCH. THE HIGH WIND WATCH HAS BEEN CANCELLED. A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW HAS BEEN ISSUED FOR THE AREA SATURDAY AND SATURDAY NIGHT. PLEASE SEE WINTER WEATHER ADVISORY PRODUCT FOR MORE INFORMATION. $$ WYZ016-081315- /O.UPG.KRIW.HW.A.0032.121208T1200Z-121208T2100Z/ /O.EXB.KRIW.HW.W.0033.121208T1200Z-121208T2100Z/ UPPER WIND RIVER BASIN- INCLUDING THE CITY OF...DUBOIS 831 PM MST FRI DEC 7 2012 ...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 2 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 5 AM TO 2 PM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...A COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA SHORTLY BEFORE SUNRISE SATURDAY ACCOMPANIED BY VERY STRONG NORTHWEST WINDS THAT WILL LAST MUCH OF THE DAY. THE STRONG WINDS WILL ALSO BE COMBINED WITH SNOW SHOWERS WHICH MAY PRODUCE A FEW INCHES OF SNOW...ESPECIALLY FROM DUBOIS AND POINTS NORTHWEST OF DUBOIS. * WIND...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELLERS BETWEEN CROWHEART AND NORTHWEST OF DUBOIS ALONG HIGHWAY 26 AND 287 SHOULD BE PREPARED FOR THESE VERY STRONG NORTHWEST WINDS. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-081315- /O.EXT.KRIW.HW.W.0033.121208T0700Z-121208T2100Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 831 PM MST FRI DEC 7 2012 ...HIGH WIND WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 2 PM MST SATURDAY... THE HIGH WIND WARNING IS NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 2 PM MST SATURDAY. * SUMMARY AND TIMING...SOUTHWEST WINDS WILL INCREASE THROUGH THE EVENING BECOMING VERY STRONG AFTER MIDNIGHT. A STRONG COLD FRONT WILL MOVE ACROSS THE AREA LATE SATURDAY MORNING WITH STRONG WINDS CONTINUING INTO THE EARLY AFTERNOON BEFORE DIMINISHING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 65 MPH...BECOMING WEST TO NORTHWEST LATE MORNING AND AFTERNOON. * IMPACTS...TRAVEL BETWEEN BEAVER RIM...JEFFREY CITY AND MUDDY GAP WILL BE IMPACTED BY NOT ONLY THESE VERY STRONG WINDS BUT ALSO SOME SNOW SHOWERS SATURDAY MORNING THROUGH EARLY SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ AEM
415 WWUS75 KRIW 080921 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 221 AM MST SAT DEC 8 2012 ...HIGH WINDS EXPECTED ACROSS PORTIONS OF CENTRAL WYOMING LATER TONIGHT INTO SATURDAY EVENING... .A VERY STRONG COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA LATER TONIGHT INTO LATER SATURDAY PRODUCING A HIGH POTENTIAL OF VERY STRONG TO HIGH WINDS IN A FEW AREAS. WYZ019-082100- /O.CON.KRIW.HW.W.0033.000000T0000Z-121208T2100Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 221 AM MST SAT DEC 8 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SOUTHWEST WINDS WILL CONTINUE INCREASE INTO THE MORNING. A STRONG COLD FRONT WILL MOVE ACROSS THE AREA LATE THIS MORNING WITH STRONG WINDS CONTINUING INTO THE EARLY AFTERNOON BEFORE DIMINISHING. * WIND...SOUTHWEST 30 TO 40 MPH WITH GUSTS TO 65 MPH...BECOMING WEST TO NORTHWEST LATE MORNING AND AFTERNOON. * IMPACTS...TRAVEL BETWEEN BEAVER RIM...JEFFREY CITY AND MUDDY GAP WILL BE IMPACTED BY NOT ONLY THESE VERY STRONG WINDS BUT ALSO SOME SNOW SHOWERS SATURDAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ016-082100- /O.CON.KRIW.HW.W.0033.121208T1200Z-121208T2100Z/ UPPER WIND RIVER BASIN- INCLUDING THE CITY OF...DUBOIS 221 AM MST SAT DEC 8 2012 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON... A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...A COLD FRONT WILL BLAST SOUTHEAST ACROSS THE AREA AROUND SUNRISE TODAY ACCOMPANIED BY VERY STRONG NORTHWEST WINDS THAT WILL LAST MUCH OF THE DAY. THE STRONG WINDS WILL ALSO BE COMBINED WITH SNOW SHOWERS WHICH MAY PRODUCE A FEW INCHES OF SNOW...ESPECIALLY FROM DUBOIS AND POINTS NORTHWEST OF DUBOIS. * WIND...NORTHWEST 30 TO 40 MPH WITH GUSTS TO 60 MPH. * IMPACTS...TRAVELERS BETWEEN CROWHEART AND NORTHWEST OF DUBOIS ALONG HIGHWAY 26 AND 287 SHOULD BE PREPARED FOR THESE VERY STRONG NORTHWEST WINDS. A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
606 WWUS75 KRIW 082053 NPWRIW URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 153 PM MST SAT DEC 8 2012 ...THE COLD FRONT HAS PASSED THROUGH THE AREA WITH DECREASING WIND... .THE COLD FRONT HAS PASSED THROUGH THE AREA WITH DECREASING WIND. HIGH WINDS ARE NO LONGER EXPECTED. WYZ019-082200- /O.EXP.KRIW.HW.W.0033.000000T0000Z-121208T2100Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 153 PM MST SAT DEC 8 2012 ...HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON... THE HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...THE COLD FRONT HAS PASSED THROUGH THE AREA WITH DECREASING WIND. HIGH WINDS ARE NO LONGER EXPECTED. $$ WYZ016-082200- /O.EXP.KRIW.HW.W.0033.000000T0000Z-121208T2100Z/ UPPER WIND RIVER BASIN- INCLUDING THE CITY OF...DUBOIS 153 PM MST SAT DEC 8 2012 ...HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON... THE HIGH WIND WARNING WILL EXPIRE AT 2 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...THE COLD FRONT HAS PASSED THROUGH THE AREA WITH DECREASING WIND. HIGH WINDS ARE NO LONGER EXPECTED. $$
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 7, 2:33 AM MST | Winter Storm Warning | RIW | Fremont, Lincoln, Sublette, Teton | 37 hr |
| Dec 7, 2:33 AM MST | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more | 47 hr |
| Dec 7, 2:56 PM MST | High Wind Watch | RIW | Fremont | 6 hr |
| Dec 7, 2:56 PM MST | High Wind Watch | RIW | Johnson | 6 hr |
Nearby
High Wind Warnings in Wyoming, 2012Every high wind warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.